Method and apparatus for controlling a gas-producing facility

Details Method and apparatus for controlling a gas-producing facility Method and apparatus for controlling a gas-producing facility

1976-09-23

1977-11-29

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Plural pumps having separate drive motors, supply sources,...

266 80, 266142, 417 28, 417 53, 417286, 417295, 417428, F04B 4106

Patent

active

040603393

ABSTRACT:
A method and apparatus for controlling a multiple-plant gas-producing facility which is subject to wide variations in the demand for its output. The invention is particularly applicable to an oxygen-producing facility for a steelmaking operation in which there are two independently operable oxygen-producing plants. It is impractical to shut down an oxygen-producing plant when its output temporarily is not needed. During periods of reduced demand conventional practice is to operate one plant at its normal rate to supply the needed oxygen and operate the other plant at a reduced rate and waste excess oxygen which cannot be liquefied and stored. The invention provides a way of combining the outputs of two plants, whereby both plants can operate at reduced rates during periods of reduced demand, and large scale waste is avoided.

REFERENCES:
patent: 1695953 (1928-12-01), Feild
patent: 2942866 (1960-06-01), Anderson
patent: 3151199 (1964-09-01), Flynn et al.
patent: 3312074 (1967-04-01), Keith et al.
patent: 3817658 (1974-06-01), Murase

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